Home / 139,600.68-192,643.29-75,938.55

Finding the Fourth Proportional to 139,600.68, 192,643.29 and 75,938.55

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Solution

The fourth proportional to 139,600.68, 192,643.29 and 75,938.55 is: 104,792.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,600.68 : 192,643.29 = 75,938.55 : x
  2. Step 2: Convert to fraction form
    139,600.68/192,643.29 = 75,938.55/x
  3. Step 3: Cross multiply
    139,600.68x = 192,643.29 × 75,938.55
  4. Step 4: Simplify right side
    139,600.68x = 14,629,052,109.83
  5. Step 5: Solve for x
    x = 14,629,052,109.83/139,600.68
  6. Step 6: Final answer
    x = 104,792.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.